Elseworlds 80-Page Giant (1999), pg. 37 (Superman Jr. Is No More!, pg. 3)

The Super-Sons return in an Elseworlds story where Superman decides to traumatize his son (and the world) by faking his own death in order to teach his son a lesson.

This book has an interesting publication history. From Wikipedia:

"This comic included the stories "Superman Jr. Is No More!", featuring the Super-Sons, and "Letitia Lerner, Superman's Babysitter", among others. DC Comics President Paul Levitz deemed the Letitia Lerner story inappropriate (for featuring scenes depicting the baby Superman in a microwave, among others) and ordered the press run halted and the printed issues destroyed. However, around 2,000 copies of the issue had already been shipped to the UK. Although DC attempted to recall these copies, they quickly became a highly sought after collector's item, and estimates of available copies range between 700 and 2,000.

The Letitia Lerner story earned two Eisner Awards, and was later republished in the pages of Bizarro Comics (a collection originally devised as a vehicle to showcase the feature).

The Super-Sons story was republished in Batman/Superman: Saga of the Super Sons."

It was later reprinted as "DC Comics Presents: Elseworlds 100-Page Spectacular #1" with an additional story.